Material-elevator.



H. GULL.

' MATERIAL ELEVATOR.

APPLICATION FILED 1I0V.11I 1908.

PatentedAug. 23, 1910.

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H. GULL.

MATERIAL ELEVATOR.

7 APPLICATION FILED NOV. 11, 1908.

Patented Aug. 23, 1910.

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MATERIAL ELEVATOR APPLICATION IILBD 10 7.11 1908.

Patented Aug. 23, 1910.

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UNITED STATES PATENT oraroE.

HENRY CULL, OF CHICAGO, ILLINOIS.

MATERIAL-ELEVATOR.

ll; all whom it may concern:

Be it known that I, HENRY CULL, a citi- Zen of the United States, and aresident of the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Material-Elevators; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to that class of material elevators adapted foruse by builders in elevating materials of any kind during theconstruction of a building. Such elevators are extensively used bymasons in eleyating the brick, mortar and stone to the workmen as thebuilding progresses. Usually, it has been customary to omit one or twojoists in the floor of each story and to extend the ways of the elevatorupwardly therebetween, staying the same to the floor, and, of course,after the work of the masons is completed, disassembling the device andreplacing the joists previously omitted. Usually, in such devices, buttwo vertical ways or guides are erected parallel to each other and thecages or platforms are directed outwardly therefrom and slide thereon inraising and lowering, and, inasmuch as but two ways are used, it hasbeen deemed necessary to carry the elevator up between the joists asbefore described to secure lateral support.

The object of this invention is to provide an elevator having twomovable platforms or cages supported near the ways adapted to beself-sustaining, thereby permitting the device to be erectedconveniently outside the building instead of inside and enabling theconstruction to be carried to any desired height with but very slightlateral support, if any, from the building under construction.

It is also an object of the invention to afford an elevator of the classdescribed having four corner posts constructed of duplicateinterchangeable parts and adapted thereby to be extended to any desiredlength or height, each of said corner posts serving as one of the waysupon which one of the platforms slides.

It is also an object of the invention to afford an elevator whereby anydesirable or convenient source of power may be util- Specification ofLetters Patent.

Application filed November 11, 1908.

Patented Aug. 23, 1910.

Serial No. 462,111.

ized for elevating the material, or, if desired, a horse or other draftanimal or animals may be employed in operating the cables.

The invention consists in the matters hereinafter described and morefully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a side elevation of a device embodying myinvention. Fig. 2 is an end view thereof. Fig. 3 is a top plan view.Fig. 4 is an enlarged side elevation of the ratchet and detent andcontrolling lever for the hoisting drum. Fig. 5 is a view taken at rightangles to that shown in Fig. 4'. Fig. 6 is an enlarged fragmentarydetail face view of one of the ways or corner posts. Fig. 7 is a viewtaken at a right angle therewith. Fig. 8 is a section taken on line 8-8of Fig. 7.

As shown in the drawings: said elevator is constructed in separabledetachable units affording the frame thereof and comprising a bottom orbase portion of plank, which, if desired, maybe arranged in two layers,

each layer being crossed at an angle with the other afiording a platformor bed A. Resting thereon at their lower ends, are uprights or posts, asshown four in number, and arranged one at each corner of the frame to beerected, each of said posts being constructed of plank or suitabledimensioned stuff, and, as shown, comprising sections B, two inches byeight inches in dimension, and convenientlya length approximating thestory height of the building to be erected, as, for instance, twelvefeet. The ends of the plank B, are cut to interfit as succeedingsections or lengths are added or as the structure increases in height.As shown, at the upper end of each of said sections is provided a tenonZ), adapted to fit into a mortise or seat I), at the lower end of thenext succeeding section, and as shown, apertures are provided equaldistances apart for the entire length of each section and near thecenter thereof, as shown in Fig. 6.

Rigidly bolted at intervals in its length along the outer edge and innerface of each of the sections B, is a section B, conveniently narrowerthanthe sections 13, the difference in width being approximately thethickness of the sections 13, as shown in Fig. 8, and as shown, saidpost sections 13, are each provided at the upper end with an upwardlyextending portion or tenon 6 at its inner edge adapted to fit into aseat 6 j in the corresponding lower end of the next section above.

Metallic plates 5 -7), are arranged at 'the corners longitudinally ofthe posts at the point where the sections join, and are bolted in placeto partially cover the joint and to reinforce the same, sustaining thestructure. The posts thus formed are rig-- idly secured together attheir bottoms by sills C-C, affording a frame about the same, these, asshown, resting flat upon the base or platform A, and being boltedthrough the foot of each post, as shown in Figs. 1 and 2.

Arranged diagonally to connect the posts on all sides of the frame arebraces. l)D, which are cut in length and bored at the ends to permitbolts to pass through the apertures therein to engage in the aperturesprovided therefor in the post sections 13-13, and near the tops of theposts is provided a frame "comprising planks or dimension stuff C ,-Ccorresponding with the sills C-C, and whichbe'ing thoroughly bolted tothe upper ends of the posts in horizontal position, afford a platformupon which to support the hoisting frame.

Bolted on the inner face and inner edge of each of the post sections B,is an angle bar E, forming the guide or way on which the carriages orplatforms move, these, as shown, being arranged at each end of theframe. Slidable in each pair of said ways is a carriage 'OI .lQ fltformF, F. Said platforms, as shown, are rigidly secured at their edgeadjacent the ways appropriated thereto to a rigid back frame comprisinglongitudinal members f-f, at the top and the bottom, each provided witha suitable roller pulley f peripherally grooved to engage on the ways,and as shown, said members are connected vertically by bars f f*--f andas shown, the central of said bars f being connected with the hoistingbeam f, which extends peripherally of the frame and is connected with avertical bar or member the lower end of which is connected to the inneredge of the platform,

as shown in Figs. 1 and 3. Said platforms,

of course, may be braced in any suitable manner to afford the requisitestrength and durability.

Supported on the top frame afforded by the beams fi -C is the hoistingframe, comprising, as shown, beams or joists G G, 'of a length to extendacross said frame and above each of the hoisting cages or platforms.Said joists, as shown, are rigidly connected by means of a small bar ora short piece of timber g, bolted beneath the same at one end and at theopposite end or that over the hoisting drums by longer bar or piece oftimber g, bolted between the same. Near the middle of the frame thusformed is provided a bar or beam g bolted between said oists parallel tothe bar 9, and bolted to each of the frame bars gg and parallel with thejoist G, is a shorter joist or frame member 9 Journaled on the joists G-G, above the platform F, is a shaft g, having a grooved pulley thereonin position to lead over the center of the hoisting beam f, for thatplatform or cage, and ournaled on the joists G-g/ above the hoistingbeam f, on the frame or platform F, is a shaft g, onwhich is a pulley 9over which the cable to the hoisting beam on the platform F, leads, andas shown, at the outer end of said hoisting frame is provided a shafthaving a pulley g, thereon, over which the cable connected with theplatform F, leads downwardly to one of the hoisting drums. In a similarmanner a shaft g, is journaled on the outer end of the joist g and joistG, and is provided with a pulley 9 over which the cable from theplatform F, leads to the hoisting drum. Said frame is rigidly butremovably secured on the top frame by means of U bolts 9, which straddlesaid joists and the top frame members G on each side ofthe frame andrigidly engage the same in adjusted position, but permit quick releasewhen it is desired to move upwardly by the insertion of additional postsections.

Supported on the platform A, at the bottom of the frame, are hoistingdrums, as shown two in number, indicated by H H. These, as shown, aremounted upon suitable frames h7t, which may be connected, if desired,and are'rigidly bolted to the platform. The drum H, as shown, in Figs. fand 5, comprises a drum portion having rigidly connected therewith onits inner face a ratchet wheel 7L2, adapted to be engaged by either thepawl h or h dependent upon which of the platforms is rising. As shown, across bar or other connecting rod 71 is engaged on the arms 7a,positively connected with the respective detents, and a lever it", ispivotally engaged on the frame and engages the connecting bar or rod h,to permit said bar to be swung in either direction to bring the detentat one or the other end thereof into engagement with the teeth on saidratchet wheel, and to hold said drum from rotation.

As shown in Figs. 2 and 3, the cable X,

extends downwardly from the pulley 9 and led upwardly over the pulley 9and pulley g, the end being fastened to the hoisting beam of the cage orplatform F. It will thus be seen that the ends of a single line arefastened to the cages, and the bight of the line is passed around therespective drums and outwardly to a snatch block, said leads around saiddrums being properly directed to cause one cage to rise as the otherdescends.

Of course, in lieu of a snatch block, the winch of a hoisting engine ormotor may be used for the bight of a line to actuate said cages.Conveniently, however, and frequently, draft animals are used foroperating the device. For this purpose, a hook is engaged in one of theleads of line sufliciently near the frame to enable the operator toattend the machine and at the same time drive the horse, if desired. Ifthe horse attached to the line X, beyond the hoisting drums pull on theline X, the platform F, will, of necessity, rise, though, as the big-htof the line passes through the snatch block 72, (or around the drum ofthe hoisting engine if the same be used), one is slacked thereby and therotation of the hoisting drum H, is reversed, causing the platform F, todescend.

Of course, braces are applied wherever convenient, and any desirednumber may be used, and it is quite immaterial as to the generalarrangement of such braces as they may assume many different positionsdependent upon the length of the braces and the requirements in eachparticular case. F or all ordinary uses, however, whether erected withinor without a building under construction, said braces are arrangeddiagonally, as shown in Figs. 1 and 2, the bolt apertures at each end ofeach brace being the same distance apart as the diagonal distance fromcertain apertures in the frame posts. Thus, said braces areinterchangeable and duplicate as are also the post sections of eachkind, namely, the outer and the shoulder, and also the various framemembers described. In consequence, it follows that in erecting thedevice or elevator of the class described any of the outer post sections may be engaged on any of the other of said sections in increasingthe height, and as shown, the narrower sections 13', overlap the jointin the outer, in consequence, and owing to the metallic plates engagedat the joint, great strength and rigidity is assured.

Safety catches or dogs may be provided on the lower ties C, or on any ofthe ties in position to engage the empty cage or platform to support anelevated upper platform. For this purpose a stop or bracket is securedon the center upright of each cage on the outer side thereof and anunbalanced lever K, is hinged on the adjacent tie, its outer heavier endtending to swlng downl wardly to elevate the inner end into position toengage above the bracket 70, and hold the cage down. A line 70, extendsfrom the outer end of the lever upwardly alongside. the frame to the topand permits the cage to be released from any floor.

Of course, various devices may be employed for platforms. It is quiteimmaterial if the platform construction be as described or not,excepting that conveniently the grooved pulleys which engage the ways ofeach platform are journaled at the back of each frame, thus permittingthe front and both ends of each platform to be entirely unobstructed toreceive the load.

Of course, I am aware that very many details of this construction may bevaried. I therefore do not purpose limiting this application for patentotherwise than necessitated by the prior art.

I claim as my invention:

1. A material elevator embracing a frame, comprising four compositeposts each comprising a flange member and a web member, each postconsisting of a plurality of duplicate interchangeable sections,'eachsection having a tenon at one end and a corresponding seat at the other,metal plates reinforcing the joints between said members, diagonalbraces cut to equal length having an aperture at each end, boltssecuring said braces to said frame diagonally by extending therethroughand through the posts of the frame, a hoisting frame secured to the topof the frame, comprising a plurality of beams, one of which is inclinedat an angle with the other and rigidly connected thereto and U boltsrigidly but detachably connecting the beams to the first named frame.

2. A material elevator embracing a frame, comprising four compositeposts, each comprising separable flange and webmembers, each postconsisting of a plurality of duplicate interchangeable sections, havinga tenon .at one end and a corresponding seat at the other, and havingapertures therethrough arranged equal distances apart, metal platesreinforcing the joints between said members, diagonal braces cut toequal length and apertured at equal distances apart, bolts securing saidbraces to said frame diagonally by extending through the braces andthrough the apertures in the posts, horizontal duplicate ties secured tothe posts at the respective floor heights, hoist-ing cages, drums foractuating the same, a ratchet wheel rigidly connected with one drum andconnected aawls on opposite sides of the ratchet wheel adapted toalternately engage the ratchet wneel to control the rotation of thedrums.

3. A material elevator embracing a frame comprising four compositecorner posts each comprising a flange and a web member separably securedtogether, each post comprising a plurality of duplicate interchangeablesections, having a tenon at one end and a corresponding seat at theother, metal plates reinforcing the joints between said members,diagonal braces cut to equal length and apertured at each end, boltsconnecting said braces to said frame diagonally by extendingtherethrough and through the posts of the frame, guides on said posts,and elevator platform slidable thereon and projecting inwardly.

4. A device of the class described comprismg four corner posts eachcomprising two sets of duplicate interchangeable sections, boltssecuring said sections together to overlap at the ends, metallic platescovering the joints formed between engaging members of the same kind, aremovable top or hoisting frame, ways secured to said posts and twocages slidable on the ways supported on the posts of the machine, oneadapted to move upwardly as the other moves downwardly.

5. A device of the class described comprising four corner posts eachcomprising LWO sets of duplicate interchangeable sec tions, of differentwidths, bolted together to overlap at the ends, metallic plates coveringthe joints formed between engaging mem bers of the same kind, ways onthe inner side of said posts, a removable top or hoisting frame and twoinwardly facing cages slidable on said ways one adapted to move upwardlyas the other moves downwardly, and a single cable supporting andoperating said cages.

6. A device of the class described comprising four corner posts eachcomprising two sets of duplicate interchangeable sections, a narrowflange and a wider web section, bolts connecting the same to overlap atthe ends, metallic plates covering the joints formed between engagingmembers of the same kind, ways on said posts, a removable top orhoisting frame and two cages slidable on the ways open on the inner sideand one adapted to move upwardly as the other moves down.- wardly, asingle cable supporting and operating both cages and a safety pawl orlever acting to engage the empty cage and thereby support the load.

7. A device of the class described embracing a material elevator havingfour composite corner posts arranged in inwardly facing pairs, each postcomprising two members, said members breaking joints, a reinforcingplate extending longitudinally of the members across the joints, anangle bar on the inner edge of the posts of each pair forming ways, apair of inwardly projecting cages, grooved rollers pro ectlng laterallyfrom each side of the back of the cages and engaging the ways and acable for moving the cages oppositely.

8. A material elevator of the class described embracing four compositecorner posts, ways on the inner side of said posts in inwardly facingpairs and consisting each of a metallic plate or bar, oppositelymovable, inwardly facing cages, grooved rollers on the back thereofadapted to engage said ways, a cable for actuating the cages, a hoistingdrum for the cable, a bracket secured to the lower end of each cage, anunbalanced lever adapted to engage the bracket when the cage is at itslower limit of movement and a cable secured to the lever and extendingupwardly to the top of the elevator. 9. A frame for elevators comprisingcomposite corner posts, each post apertured longitudinally andconsisting of duplicate sections and each section formed of a pluralityof members, each member breaking joints with the other member, diagonalinterchangeable brace bars apertured at equal distances apart, aremovable top frame and U bolts for removably securing'the same inposition. 10. In a device of the class described sectional corner posts,each section comprising a plurality of members and the alined members ofeach post breaking joints with the other alined members of the samepost, in-

terchangeable diagonal brace bars, inter changeable cross bars andmetallic brace members extending longitudinally of the posts andoverlapping the joints.

11. In a device of the class described sectional corner posts, eachsection comprising a plurality of members and the alined members of eachpost breaking joints with the other alined members of the same post,interchangeable diagonal brace bars, interchangeable cross bars,metallic brace members extending longitudinally of the posts andoverlapping the joints, a removable top frame, pulleys journaledthereto,cages,a cable secured to the cages and trained around thepulleys, drums around which the cable passes and adjustable mechanism tolock the drum from movement in either direction.

12. A frame for elevators comprising sections each consisting of aplurality of members and the members of each section terminating atdifferent planes at each end whereby the members at corresponding endsbreak joints, reinforcing means at each joint of each member of thesections, removable top frame, elevator cages, a drum, a cable securedto the cages and trained around the drum, a toothed wheel secured to thedrum and simultaneously movable members adapted to independently engagethe drum to lock the same from movement in each direction.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

HENRY CULL. \Vitn'esses:

K. E. IIANNAI-I, Dnwnnnon REIBSTEIN.

